With a child and pets in the house, it's time to call in a handyman and get all the holes inside and outside of the house closed properly, and get the trim up as well, other wise what ever process you decide to use in getting rid of the critters would be a total waste of time and money.
All critters are dangerous....they all bite, and if they don't have rabies, they carry ticks and fleas.
If you can't afford a handyman, find a neighbor, friend, or relative who's handy to get the work done for you.
In the meantime, keep all packaged foods in your fridge...and take your garbage out often...especially at night before going to bed.
I live in the country and shortly after I moved into my home, I discovered I had to deal with 2 very large snakes, a colony of 400 bats, some mice and several rats the size of cats. I tried everything, and everything failed until I hired a professional handyman to close off all the holes inside and out side of the house. A specialty professional was also hired to deal with the bats....come to find out they are an endangered species...for them all but one hole was closed and a one way door was built over this hole....so once they went out to feed, they couldn't get back in....two weeks later the one way door was removed and the hole was closed off. I also had bat watches from all over the county camping out on my lawn...My infested home seemed to become a social event.
It was a long and hard and expensive process for me in getting ride of all the critters, both bat specialist and handyman worked together and then I first called in an exterminator once the other guys were finished.....at least now I know I'm living alone..
Twice a year in early spring and late fall I put opened trays of d-con bait pellets in my basement and crawl spaces for mice and rats...one box in each area...and find the trays are full when I change them....this is a good sign that I'm still living alone. I still keep all packaged foods in my fridge and take out my garbage when I'm done in the kitchen every evening.